For the answer to the question above asking to r<span>esolve the car's velocity vector (in 2-space) into components if the car is traveling in each of the following directions. The units are km/hr, but
</span>east: 60i + 0j
<span>south: 0i - 60j </span>
<span>SE: (30√2)i - (30√2)j </span>
<span>NW: (-30√2)i + (30√2) </span>you do not need to enter units.
Answer:
i think its -5
Step-by-step explanation:
if you devide 25 by -5 you get -5
I am really not sure but i think the answer is 29 is there any choices?!?
I found that because i divided 130.50 by 4.5. =)
Hope that helped
Set up a system of equations:
x + y = 9
1/x +1/y = 1/2
The easiest way to solve would be substitution.
x + y = 9 can be solved for y:
y = 9 - x
Then plug this into the second equation and solve for x:
1/x + 1/(9-x) = 1/2
(9-x) + x = x(9-x)/2
9 = (9x-x²)2
18 = 9x - x²
x² - 9x + 18 = 0
(x-6)(x-3) = 0
x = 6, 3
You can check your answer by plugging the two numbers back into both of the equations:
6 + 3 = 9
1/6 + 1/3 = 1/2
The two numbers are 6 and 3.
400,000
because if you do 10 with the exponent of 5 you'll get 100,000 multiply by 4 = 400,00
1000x2 = 2000
